qcacmn: Support force wake request

1. Add hif_force_wake_request API to wake the
mhi and umac before reading/writing the memory region
greater than BAR+4K.
2. Add hif_force_wake_release API to release the
PCIE_PCIE_LOCAL_REG_PCIE_SOC_WAKE_PCIE_LOCAL_REG so the
umac can power collapse again at a later point of time.
3. Add pci stats to dump the force wake status.

Change-Id: Ic6d5463ea0cdb28d9144be61da55e43033b53298
CRs-Fixed: 2478052

hal/wifi3.0/hal_internal.h

@@ -502,6 +502,9 @@ struct hal_soc {
 	struct hal_hw_srng_config *hw_srng_table;
 	int32_t *hal_hw_reg_offset;
 	struct hal_hw_txrx_ops *ops;
+
+	/* Indicate srngs initialization */
+	bool init_phase;
 };
 
 void hal_qca6490_attach(struct hal_soc *hal_soc);